Sentence examples for sperm delivered from inspiring English sources

In many cases, sperm competition can be compared to a raffle where the male probability to fertilize eggs is proportional to the relative number of sperm delivered by the male [ 6, 7].

Two general ejaculate traits influence fertilisation success under sperm competition [ 11]: the relative number of sperm delivered by competing ejaculates (ejaculate size) [ 12, 13], and the motile performance of inseminated sperm (ejaculate quality) [ 14- 16].

Researchers have long known that the sperm delivers its genetic cargo and centriole, a structure that coordinates chromosome separation during the fertilized egg's division.

"Bad dad" sperm deliver toxins to great deleterious effect during conception and with long lasting impact after.

By taking advantage of the techniques of intracytoplasmic sperm injection (ICSI) and artificial activation of eggs, we can study the question by separating sperm-egg fusion with egg activation and ask what if a sperm delivers a somatic-like chromatin, instead of the protamine-packaged chromatin to the egg at fertilization.

Each sperm delivers a haploid paternal genome along with mature RNA that initiates and directs subsequent development [ 40].

Research over the past two decades has revealed that sperm deliver not only the paternal genome, but also factors required for oocyte activation, first cleavage division and the subsequent preimplantation development (Sutovsky, 2011; Jenkins and Carrell, 2012a; Yanagimachi, 2012).

To end this controversy, Hamamura et al. (2011) used a photo-convertible fluorescent protein to mark each sperm cell differently and examined the preferentiality of fertilization of two sperm cells delivered by a wild-type pollen tube to a wild-type ovule.

One of the several nuclei of the embryo sac serves as the egg in sexual reproduction, uniting with one of the two sperm nuclei delivered by the pollen tube.

Until now, it was thought that sperm simply delivered the father's tightly packed DNA to the egg, leaving control and regulation of the process to the mother's DNA.

However, one contributory factor that has recently emerged is the quality of the sperm DNA delivered to the oocyte at the moment of fertilization [3].